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BOSTON MARATHON 2025

Keryn Lacivita

Bib: 19798•F

MA

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 47%
Gender (Female)
#0 / 12228
Top 33%
Masters (Masters Women)
#0 / 6759
Top 18%
Division (F40-44)
#0 / 1718
Top 37%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
24:21
Rank: #15127
Start → 5K
24:21 | 7:50/mi
10K· 6.21 mi
48:28
Rank: #14782 (+345)
5K → 10K
24:07 | 7:46/mi
15K· 9.32 mi
1:12:30
Rank: #14441 (+341)
10K → 15K
24:02 | 7:44/mi
20K· 12.43 mi
1:36:41
Rank: #14080 (+361)
15K → 20K
24:11 | 7:47/mi
Half· 13.11 mi
1:41:50
Rank: #13975 (+105)
20K → Half
5:09 | 7:33/mi
25K· 15.53 mi
2:00:53
Rank: #13732 (+243)
Half → 25K
19:03 | 7:51/mi
30K· 18.64 mi
2:26:22
Rank: #13493 (+239)
25K → 30K
25:29 | 8:12/mi
20M
2:37:31
Rank: #13344 (+149)
30K → 20M
11:09 | 8:12/mi
21M
2:46:24
Rank: #13274 (+70)
20M → 21M
8:53 | 8:53/mi
35K· 21.75 mi
2:52:21
Rank: #13203 (+71)
21M → 35K
5:57 | 7:57/mi
23M
3:02:54
Rank: #13168 (+35)
35K → 23M
10:33 | 8:26/mi
24M
3:11:14
Rank: #13166 (+2)
23M → 24M
8:20 | 8:20/mi
40K· 24.85 mi
3:18:34
Rank: #13181 (-15)
24M → 40K
7:20 | 8:35/mi
25.2M
3:22:03
Rank: #13255 (-74)
40K → 25.2M
3:29 | 10:06/mi
Finish· 26.22 mi
3:30:50
Rank: #13427 (-172)
25.2M → Finish
8:47 | 8:37/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:41:50
Pace7:46 /mi
2nd Half
Distance13.11 mi
Time1:49:00
Pace8:19 /mi
📊Positive Split: 7.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:16:0924:217:5024:21
7:50
-
10K
6.21 mi11:40:1648:287:4824:07
7:46
-0:04
15K
9.32 mi12:04:181:12:307:4724:02
7:44
-0:02
20K
12.43 mi12:28:291:36:417:4724:11
7:47
+0:03
Half
13.11 mi12:33:381:41:507:465:09
7:33
-0:14
25K
15.53 mi12:52:412:00:537:4719:03
7:51
+0:18
30K
18.64 mi13:18:102:26:227:5125:29
8:12
+0:21
20M
20.00 mi13:29:192:37:317:5311:09
8:12
0:00
21M
21.00 mi13:38:122:46:247:558:53
8:53
+0:41
35K
21.75 mi13:44:092:52:217:555:57
7:57
-0:56
23M
23.00 mi13:54:423:02:547:5710:33
8:26
+0:29
24M
24.00 mi14:03:023:11:147:588:20
8:20
-0:06
40K
24.85 mi14:10:223:18:347:597:20
8:35
+0:15
25.2M
25.20 mi14:13:513:22:038:013:29
10:06
+1:31
Finish
26.22 mi14:22:383:30:508:038:47
8:37
-1:29

Checkpoints & Pacing

📈Pace Line

Pace Progression

Track your pace changes throughout the race. Dot colors mark your quickest to easiest segments, relative to your own pace.

Fastest Pace

7:33 /mi

Average Pace

8:03 /mi

Slowest Pace

10:06 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:00:53

57% of race

Time at Steady Pace

1:01:28

29% of race

Time at Slower Pace

28:29

14% of race

Average Pace: 8:02 /mi

Loading chart...
Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

🎨Heatmap

Pace Heatmap

Where you sped up and eased off relative to your own pace across the race. Colors are relative to your own range, not to other runners.

Loading...
0mi6.6mi13.1mi19.7mi26.2mi
Pace:
Faster
Steady
Slower

Click or hover over segments to see details

✨Sparklines

Checkpoint Splits with Pace Trends

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi11:16:0924:217:5024:21
7:50
#15127
10K
6.21 mi11:40:1648:287:4824:07
7:46
#14782
15K
9.32 mi12:04:181:12:307:4724:02
7:44
#14441
20K
12.43 mi12:28:291:36:417:4724:11
7:47
#14080
Half
13.11 mi12:33:381:41:507:465:09
7:33
#13975
25K
15.53 mi12:52:412:00:537:4719:03
7:51
#13732
30K
18.64 mi13:18:102:26:227:5125:29
8:12
#13493
20M
20.00 mi13:29:192:37:317:5311:09
8:12
#13344
21M
21.00 mi13:38:122:46:247:558:53
8:53
#13274
35K
21.75 mi13:44:092:52:217:555:57
7:57
#13203
23M
23.00 mi13:54:423:02:547:5710:33
8:26
#13168
24M
24.00 mi14:03:023:11:147:588:20
8:20
#13166
40K
24.85 mi14:10:223:18:347:597:20
8:35
#13181
25.2M
25.20 mi14:13:513:22:038:013:29
10:06
#13255
Finish
26.22 mi14:22:383:30:508:038:47
8:37
#13427
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi151274613461313804(Top 49%)3904(Top 32%)3904(Top 227%)
10K6.21 mi3.10 mi14782+3454423+1904423+19014437(Top 51%)4219(Top 35%)4219(Top 246%)
15K9.32 mi3.11 mi14441+3414225+1984225+19813804(Top 49%)3904(Top 32%)3904(Top 227%)
20K12.43 mi3.11 mi14080+3614051+1744051+17413106(Top 46%)3610(Top 30%)3610(Top 210%)
Half13.11 mi0.68 mi13975+1053993+583993+5812048(Top 42%)2992(Top 24%)2992(Top 174%)
25K15.53 mi2.42 mi13732+2433888+1053888+10512790(Top 45%)3560(Top 29%)3560(Top 207%)
30K18.64 mi3.11 mi13493+2393815+733815+7312823(Top 45%)3733(Top 31%)3733(Top 217%)
20M20.00 mi1.36 mi13344+1493768+473768+4711790(Top 42%)3356(Top 27%)3356(Top 195%)
21M21.00 mi1.00 mi13274+703763+53763+512767(Top 45%)4026(Top 33%)4026(Top 234%)
35K21.75 mi0.75 mi13203+713742+213742+2111863(Top 42%)3600(Top 29%)3600(Top 210%)
23M23.00 mi1.25 mi13168+353770-283770-2812816(Top 45%)4181(Top 34%)4181(Top 243%)
24M24.00 mi1.00 mi13166+23800-303800-3013427(Top 47%)4546(Top 37%)4546(Top 265%)
40K24.85 mi0.85 mi13181-153828-283828-2813865(Top 49%)4912(Top 40%)4912(Top 286%)
25.2M25.20 mi0.35 mi13255-743885-573885-5717365(Top 61%)6812(Top 56%)6812(Top 397%)
Finish26.22 mi1.02 mi13427-1723998-1133998-11316911(Top 60%)6531(Top 53%)6531(Top 380%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 49%
×21stories
+97ft-345ft

Overall

13804

Females

3904

F40-44

3904

5K→10K

3.1 - 6.2 mi

Top 51%
×5stories
+79ft-138ft

Overall

14437

Females

4219

F40-44

4219

10K→15K

6.2 - 9.3 mi

Top 49%
×3stories
+67ft-78ft

Overall

13804

Females

3904

F40-44

3904

15K→20K

9.3 - 12.4 mi

Top 46%
×5stories
+106ft-86ft

Overall

13106

Females

3610

F40-44

3610

20K→Half

12.4 - 13.1 mi

Top 42%
×2stories
+19ft-37ft

Overall

12048

Females

2992

F40-44

2992

Half→25K

13.1 - 15.5 mi

Top 45%
×4stories
+66ft-88ft

Overall

12790

Females

3560

F40-44

3560

25K→30K

15.5 - 18.6 mi

Top 45%
×9stories
+181ft-148ft

Overall

12823

Females

3733

F40-44

3733

30K→20M

18.6 - 20.0 mi

Top 42%
×5stories
+64ft-50ft

Overall

11790

Females

3356

F40-44

3356

20M→21M

20.0 - 21.0 mi

Top 45%
×8stories
+106ft-24ft

Overall

12767

Females

4026

F40-44

4026

21M→35K

21.0 - 21.8 mi

Top 42%
×7stories
+17ft-86ft

Overall

11863

Females

3600

F40-44

3600

35K→23M

21.8 - 23.0 mi

Top 45%
×5stories
+23ft-63ft

Overall

12816

Females

4181

F40-44

4181

23M→24M

23.0 - 24.0 mi

Top 47%
×6stories
+12ft-82ft

Overall

13427

Females

4546

F40-44

4546

24M→40K

24.0 - 24.9 mi

Top 49%
×1story
+6ft-20ft

Overall

13865

Females

4912

F40-44

4912

40K→25.2M

24.9 - 25.2 mi

Top 61%
×1story
+13ft-16ft

Overall

17365

Females

6812

F40-44

6812

25.2M→Finish

25.2 - 26.2 mi

Top 60%
×2stories
+22ft-21ft

Overall

16911

Females

6531

F40-44

6531

Passing Analysis

Category:
Athletes Passed
2790
Passed By
1090
Net Change
+1700
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15127
5K → 10K497152+345#15127#14782
10K → 15K39554+341#14782#14441
15K → 20K40645+361#14441#14080
20K → Half1127+105#14080#13975
Half → 25K29451+243#13975#13732
25K → 30K347108+239#13732#13493
30K → 20M19344+149#13493#13344
20M → 21M13767+70#13344#13274
21M → 35K9221+71#13274#13203
35K → 23M13196+35#13203#13168
23M → 24M7472+2#13168#13166
24M → 40K6984-15#13166#13181
40K → 25.2M1993-74#13181#13255
25.2M → Finish24196-172#13255#13427
TOTALS27901090+1700
📊

Passing Visuals

Category:
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🔥Passing Intensity

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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing